Frank dawson and john holleyhead



(No Model.)

I'. DAWSON 8u J. HOLLEYHE-AD.

GAR STARTER.A

10.300,698. PatentedJun 17,1884..

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N; PETERS. Phqmumugmpmr. wauhingim. n.

UNITED" STATES PATENT OFFICE.

FRANK DAWSON AND JOHN HOLLEYHEAD, OF VVILLIAMSPORT, PA.

CAR-STA RTER.

SPECIFICATION forming part of Letters Patent No. 300,698, dated June 17,1884.

Applicationiiled April 4, 1884. (No model.)

To all whom. zin/Lay concern:

Beit known that we, FRANK DAWSON and JOHN HOLLEYHEAD, both ofWilliamsport, in the county of Lycoming and State of Pennsylvania, haveinvented a new and useful Improvement in Car-Starters; and we do herebydeclare that the following is a full and exact description of the same,reference being had to the accompanying drawings, and t'o the letters ofreference marked thereon.

Our principal object in the improvements' we have devised incar-starters for street-railroad and other cars is a greater simplicityin construction, and consequently a greater economy of first cost and inthe expense of repairs, and at the same time to have a quick, direct,and effective application of the power for sta-rting the car. Thenovelty in our invention consists, mainly, inthe peculiar constructionof the lever-clutch,

in combining it directly with the iianges of the' for a better displayof the car-starter and its attachments; Fig. 2, a section on the line frof Fig. 1, and Fig. 3 a separate view of the lever-clutch.

In' the drawings, A represents the bottom of a car; B, one of the wheelsof the same; and C its axle, which is scoured firmly to itstraction-wheels. Upon this axle there is placed a driving-wheel, D, madein two equal parts, a and b, so as to be conveniently attached to ordetached from the axle, and the same is recessed on both sides, so as toleave a rectangular iiange or rim, c, around its periphery. This wheel Dhas hubs e c, extending on each side a little distance, and at the endsof the Vhub clampin g arms f f, the hub and the clamping-arms being eachmade in two equal parts, like the wheel, aud each group of parts ofsingle pieces of metal, each half-wheel, two hubs,

and two clamping-pieces being made in one piece. By means of screws g gthrough the ends of the clamps, the same closely embrace the axle, andare secured more firmly to the same by means of other screws directlythrough the sides of the clamps into the axle. Collars E E also are madein two parts, having ears e e2, secured together by other screws, g g',passing throughthese ears. One collar is placed loosely over each hub ee, so as to have rotation thereon, and its thickness is preferably aboutthe width of said hubs, so that the collars are restrained from lateralmovement by the sides of the wheel D and by its clampingarms ff.

To the ears e e2 is securely fastened a yoke, F, from whose body f achain, G, leads to the projecting arm 7L of a disk, H, the arm h of thisdisk being limited in its movements by a keeper, I, upon the under sideof the car-bottom. This disk H is attached to a shaft, J, passingthrough the platform of the car, and provided with a ratchet-wheel, K,and pawl L, and proper hand-wheel or handle. When the ratchet-wheel isturned in one direction, the chain G pulls upon the collar E andpartially turns it upon the axle, and when the ratchet is releasedthecollar partially rotates in the opposite direction, by reason of theweight of the lever to the lever-clutchlli. This lever-clutch has alever-arm, h, a jaw, t', rectangularV inside, and hooks j j ofrectangular shape, conforming in size to the flange or rim c of thedriving-wheel D. Extensions or lugs 7c of these hooks j j are pivoted oneach side of the wheel to lugs'l l upon the collar E. The outer end ofthe lever-arm 71. has attached to it a chain, N, which passes over apulley, O, secured to the car-bottom, and is fastened to the end of theextension m of the draw-bar P, which is properly supported under the carin such a way that it may have a longitudinal movement within certainlimits. W'hen the draw-bar is drawn out, it compresses a spring, Q, uponthe extension m, and when strain on the draw-bar ceases the springretracts it to its proper position.

In operation, when it is desired to start a car, the draft upon thedraw-bar, by means of the chain N, raises the end of the lever from itsnormal position, sloping a little downward IOO firmly upon said fiangeor rim, and the wheel D and the axle and traction-wheels are partiallyturned. By the further outward movement of the draw-bar and lifting ofthe lever end of the clutch, the angle of the jaw and hooks is changedagain in relation to the fiange or rim of the wheel D, and the clutchceases to grip the same, which turns freely in accord with the axle andtraction Wheels. A further raising ofthe lever-arm will serve to lockthe driving-wheel D and the traction-Wheels from backward rotation,while leaving them free for forward rotation. rlhislocking of the wheelsto prevent backward rotation, however, is conveniently effected by theyoke F, chain G, disk H, and shaft J, when it is not advisable to have avery great pulling out of the draw-bar, and consequently the raising ofthe lever-clutch only to the gripping-point and the point of release, asbefore explained. By the construction thus described we avoid the use ofrollers or balls or other devices between the gripping parts, to whichthe objections are numerous, and the grip is direct and immediate, andawear of the gripping parts does not affect their efficiency in use fora long time, as it necessitates only increasing the length of movementof the lever end of the lever-clutch. Itwill be observed, also, that thedriving wheel and collar being made in two equal parts, the matter ofremoval or replacement is very simple, and may be made wherever the carhappens to stand without disturbing any othe part of it.

Having thus described our invention, what we claim as new therein, anddesire to protect by Letters Patent, is-

1. A lever-clutch, h M, for a carstarter, having a rectangular jaw, i,rectangular hooks j j, and lugs k k, constructed and arrangedsubstantially as described.

2. The combination, in a car-starter, of the lever-clutch h M, having ajaw, i, hooks jj, and lugs k k, and a driving-wheel having lateralrim-anges, arranged substantially as and for the purposes described. p

3. The combination, in a car-starter, of a lever-clutch with arectangular jaw-opening, rectangular and inwardly bent hooks, adriving-wheel having lateral rim-flanges, and a loose collar to whichthe hooks of the leverclutch are pivoted,substantially as described.

4. In a car-starter, the combination of the loose collar and its yokewith the lever-clutch for the purpose of preventing backward rotation ofthe traction-wheels of the car, substantially as described.

In testimony whereof we aiix our signatures in presence of twowitnesses.

FRANK DAWSON. JOHN HOLLEYHEAD.

Witnesses:

JN0. F. LAEDLEIU, J. T. FREDERIOKS.

